examples/browser/using_cdp.py

"""
Simple demonstration of the CDP feature.

To test this locally, follow these steps:
1. Create a shortcut for the executable Chrome file.
2. Add the following argument to the shortcut:
   - On Windows: `--remote-debugging-port=9222`
3. Open a web browser and navigate to `http://localhost:9222/json/version` to verify that the Remote Debugging Protocol (CDP) is running.
4. Launch this example.

@dev You need to set the `GEMINI_API_KEY` environment variable before proceeding.
"""

import os
import sys

from dotenv import load_dotenv
from pydantic import SecretStr

sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import asyncio

from langchain_google_genai import ChatGoogleGenerativeAI

from browser_use import Agent, Controller
from browser_use.browser.browser import Browser, BrowserConfig

load_dotenv()
api_key = os.getenv('GEMINI_API_KEY')
if not api_key:
	raise ValueError('GEMINI_API_KEY is not set')

browser = Browser(
	config=BrowserConfig(
		headless=False,
		cdp_url='http://localhost:9222',
	)
)
controller = Controller()


async def main():
	task = 'In docs.google.com write my Papa a quick thank you for everything letter \n - Magnus'
	task += ' and save the document as pdf'
	model = ChatGoogleGenerativeAI(model='gemini-2.0-flash-exp', api_key=SecretStr(str(api_key)))
	agent = Agent(
		task=task,
		llm=model,
		controller=controller,
		browser=browser,
	)

	await agent.run()
	await browser.close()

	input('Press Enter to close...')


if __name__ == '__main__':
	asyncio.run(main())